worksheet 6 12 Eclipses

```Eclipses Interactivity
Can you devise a model of an eclipse for a movie studio?
Record Data and Observations
1. In the interactivity, drag the moon to various positions relative to Earth and the sun. For each
model, click the Check Model button to find out what the sun looks like from Earth and
whether or not the arrangement is consistent with observations of eclipses. Explore at least
four arrangements in addition to the correct arrangement.
Sketch relative
positions of
Earth, moon,
and sun
Distance
between moon
and Earth
(close,
medium, or far)
Results: Sketch
what sun looks
like from Earth
in this model
Results: How is this
model consistent with
observations? How is
it not consistent?
2. What does the sun look like from Earth during a total solar eclipse?
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3.
What does the sun look like from Earth during an annular eclipse?
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4.
Make a labeled sketch that shows the relative position of the sun, moon, and Earth during a
total solar eclipse.
Analyze and Conclude
1.
Describe Patterns During what phase(s) of the moon can a total solar eclipse occur? Why
can’t a solar eclipse occur during the other phase(s)?
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2. Use Models Why does an annular eclipse occur when the moon is between the sun and
Earth, but is too far from Earth for a total eclipse?
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3. Use Models A total solar eclipse is not viewable from everywhere on the side of Earth
facing the sun. Why not?
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4. Relate Cause and Effect During a lunar eclipse, Earth’s shadow falls on the moon. Why
can’t a lunar eclipse and a solar eclipse happen during the same week?
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5. Based on the model in this interactivity, is it possible to determine how far apart the moon
and Earth are during a solar eclipse? If so, how? If not, why not?
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